Note 3 — BOOK I. (continued 2)
Reading edition
"On sea, on land, thou still didst brave The dangerous cliff and rapid wave; Like Urien, who subdued the knight, And the fell dragon put to flight, Yon moss-grown fount beside; The grim, black warrior of the flood, The dragon, gorged with human blood, The waters' scaly pride." Jones's Welsh Bards, i. 41.